core: allow set registration_redirect for domain

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "3.1.40",
+    "version": "3.1.41",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",

packages/hydrooj/src/handler/user.ts

@@ -162,7 +162,7 @@ export class UserRegisterHandler extends Handler {
             const t = await token.add(
                 token.TYPE_REGISTRATION,
                 system.get('session.unsaved_expire_seconds'),
-                { mail },
+                { mail, redirect: this.domain.registerRedirect },
             );
             if (system.get('smtp.verify') && system.get('smtp.user')) {
                 const m = await this.renderHTML('user_register_mail.html', {
@@ -223,7 +223,7 @@ class UserRegisterWithCodeHandler extends Handler {
         this.session.viewLang = '';
         this.session.uid = uid;
         this.session.scpoe = PERM.PERM_ALL.toString();
-        this.response.redirect = this.url('home_settings', { category: 'preference' });
+        this.response.redirect = tdoc.redirect || this.url('home_settings', { category: 'preference' });
     }
 }